EP0063974B1 - Dispositif pour créer une source de tension alternative avec régulation pour une alimentation de puissance à partir d'une source de courant alternatif du réseau - Google Patents

Dispositif pour créer une source de tension alternative avec régulation pour une alimentation de puissance à partir d'une source de courant alternatif du réseau Download PDF

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Publication number
EP0063974B1
EP0063974B1 EP82400593A EP82400593A EP0063974B1 EP 0063974 B1 EP0063974 B1 EP 0063974B1 EP 82400593 A EP82400593 A EP 82400593A EP 82400593 A EP82400593 A EP 82400593A EP 0063974 B1 EP0063974 B1 EP 0063974B1
Authority
EP
European Patent Office
Prior art keywords
circuit
winding
voltage
series
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82400593A
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German (de)
English (en)
French (fr)
Other versions
EP0063974A1 (fr
Inventor
François Kneider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEFLI-SOCIETE D'EQUIPEMENT ET DE FABRICATION POUR LA LUMINESCENCE ET L'INCANDESCENCE
Original Assignee
SEFLI-SOCIETE D'EQUIPEMENT ET DE FABRICATION POUR LA LUMINESCENCE ET L'INCANDESCENCE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by SEFLI-SOCIETE D'EQUIPEMENT ET DE FABRICATION POUR LA LUMINESCENCE ET L'INCANDESCENCE filed Critical SEFLI-SOCIETE D'EQUIPEMENT ET DE FABRICATION POUR LA LUMINESCENCE ET L'INCANDESCENCE
Priority to AT82400593T priority Critical patent/ATE19331T1/de
Publication of EP0063974A1 publication Critical patent/EP0063974A1/fr
Application granted granted Critical
Publication of EP0063974B1 publication Critical patent/EP0063974B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5383—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement
    • H02M7/53846—Control circuits
    • H02M7/53862—Control circuits using transistor type converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5383—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement
    • H02M7/53846—Control circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • H05B41/2821—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Definitions

  • the present invention relates to a device making it possible from a source of alternating current of the network to create a source of direct tension with regulation for a power supply for tubes with discharge without return of parasites towards the source of tension and without appreciable loss of voltage, this device comprising means supplying a sinusoidal voltage in a circuit comprising said DC voltage source, a switch with its control making it possible to cut this voltage, at least one resonant circuit associated with at least one impedance, this switch, this resonant circuit and this impedance being connected in series across the terminals of said DC voltage source and at least one reaction element connected to the control of said switch and sensitive to operating variations brought about by the use of this device adapted to intervene on the minus a means of regulation.
  • the invention relates to a device making it possible, from an alternating current source of the network, to create a source of direct voltage with regulation for a power supply for discharge tubes without return of parasites to the voltage source and without appreciable loss of voltage, this device comprising means supplying a sinusoidal voltage in a circuit comprising said direct voltage source, a switch with its control making it possible to cut this voltage, at least one resonant circuit associated with at least an impedance, this switch, this resonant circuit and this impedance being connected in series across the terminals of said DC voltage source and at least one reaction element connected to the control of said switch and sensitive to operating variations brought about by the use of this device adapted to intervene on at least one regulation means, this device being characterized in that, to regulate and stabilize the discharge and absorb the phenomena due to sudden overloads or to short-circuits, said circuit supplies a load connected in series with at least one choke, itself connected in series with at least one winding of said circuit.
  • the device according to the invention finds numerous applications and in particular in the context of power supplies comprising a transformer for a cold cathode tube, this in order to have, between the output terminals of the power supply, a voltage level related to desired use.
  • the closing of the switch is triggered in such a way that these variations in speed are restored and their effects considerably lessened.
  • the realization of the device of the invention is simple, its remarkable operational safety. Thus, the need to oversize the components of a power supply using this device disappears, which further decreases, appreciably, the cost price.
  • Figure 1 shows the electrical diagram of a power supply implementing the invention.
  • FIGS. 2A and 2B indicate the variations of the intensity i and of the voltage u as a function of time for two different instants of ignition of the transistor.
  • the device represented in FIG. 1 comprises an alternative power source delivering a medium voltage of conventional type applied between the terminals 2a, 2b of a diode rectifier bridge 2 forming a DC voltage source, a filtering capacity 3 in parallel on output terminals 2c, 2d of the rectifier bridge, an impedance 1 making it possible to limit the peak current in the rectifier bridge.
  • a winding 4a of a transformer 4 (called primary winding), shunted by a resonance capacity 5, an inductor 6 with high impedance, a power transistor 7.
  • the capacitor 11 is shunted by a series assembly formed by a diode 14, a protection resistor 15, a transistor 16.
  • the latter can be replaced by a Zener type diode.
  • a diode 17 rectifies the voltage supplied by a winding 4c of the transformer, which filters a capacitor 18. Thus rectified and filtered, this voltage supplies a divider bridge made up of resistors 19, 20, and connected to the base 16b of transistor 16, similarly that integration capacity 21.
  • the Zener type diode 22 is supplied by the resistor 23; it stabilizes a reference voltage and determines the conduction threshold of transistor 16.
  • Resistor 24 is placed in series with another possible source (not shown) for supplying base 16b of transistor 16.
  • a load matching inductor 25 In series with the winding 4d of the transformer (said secondary winding) constituting the output of the device is connected a load matching inductor 25.
  • the transistor 7 cuts the voltage supplied by the rectifier bridge 2, being simultaneously in the on state (saturation state) then in the off state.
  • the current passing through this element increases up to a certain threshold and decreases to reach a zero value when the transmitter of the transistor 7 is at a more negative potential than that of its collector.
  • the transistor reaches the blocked state and the diode 10, connected between the collector 7c and the emitter 7a, prevents the polarity reversal of the collector-emitter voltage. r.
  • the resistor 9 in series with the capacitor 8, reinforces the protection of this element.
  • the energy, rather than being dissipated in the resistor 9, can be reinjected into the main circuit by means known per se, such as for example an assembly comprising a capacitor 6a, two diodes 6b, 6c arranged as shown in broken lines in Figure 1.
  • the ignition of the power transistor 7, for its conduction during the next alternation, depends on the values of its base-emitter voltage and of its base current.
  • the circuit composed of elements 14, 15, 16 performs this operation by phase-shifting the conduction of transistor 7.
  • this circuit If this circuit is closed, condition achieved when the transistor 16 is in the on state, it derives a part of the energy intended for the polarization of the base of the transistor 7; the conduction of the latter is delayed, the effective value of the current passing through its collector is reduced (see FIG. 2A).
  • the transistor 16 also operating in commutation plays the role of switch. Its control is carried out from the winding 4c of the transformer, which delivers a so-called reference voltage. After being rectified by the diode 17 and filtered by the capacitor 18, this voltage supplies the divider bridge formed by the resistors 19, 20, serving to bias the base of the transistor 16.
  • the assembly 14, 15, 16 in combination with the winding 4c constitutes the regulation system of the device.
  • the emitter of transistor 16 will be connected to a more negative voltage of a few volts than the emitter of transistor 7.
  • the transistor 16 can be replaced by several transistors or integrated circuits of the operational amplifier type.
  • the values of the inductor 6, the capacity 5 and the nature of the load determine the operating frequency of the device (for example around 15 KHz according to a common embodiment, it can reach 40 KHz or more ).
  • the reference voltage delivered by the winding 4c of the transformer can in another embodiment be taken across the terminals of an element placed at the secondary of the transformer or come from a source external to the device, whose current is limited by the resistance 24.
  • the device makes it possible to pass relatively large powers in relation to its reasonable dimensioning.
  • the device of the invention operates without returning parasites to the voltage source.
  • this device can have a wide field of applications and can be applied to power supplies which advantageously replace conventional switching power supplies, as well as simple transformers.
  • Such power supplies ensure, for example, the supply of electrical energy to devices such as battery charger, discharge tubes, welding machines, televisions, power amplifiers, film and slide projectors.
  • the discharge tube will be connected to the secondary of the transformer 4d by having an inductor 25 in series, or else the inductor 25 may be replaced by a magnetic leak. between primary and secondary; therefore, the secondary can be short-circuited or overloaded without affecting the proper functioning of the system.
  • the parasites specific to the discharge in the tube will be made negligible.
EP82400593A 1981-04-09 1982-03-31 Dispositif pour créer une source de tension alternative avec régulation pour une alimentation de puissance à partir d'une source de courant alternatif du réseau Expired EP0063974B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82400593T ATE19331T1 (de) 1981-04-09 1982-03-31 Schaltungsanordnung einer geregelten wechselspannungsquelle zur leistungsstromversorgung aus einer netzartigen wechselstromquelle.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8107141A FR2503954A1 (fr) 1981-04-09 1981-04-09 Procede de decoupage essentiellement sinusoidal d'une tension continue avec regulation et dispositif pour sa mise en oeuvre
FR8107141 1981-04-09

Publications (2)

Publication Number Publication Date
EP0063974A1 EP0063974A1 (fr) 1982-11-03
EP0063974B1 true EP0063974B1 (fr) 1986-04-16

Family

ID=9257209

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82400593A Expired EP0063974B1 (fr) 1981-04-09 1982-03-31 Dispositif pour créer une source de tension alternative avec régulation pour une alimentation de puissance à partir d'une source de courant alternatif du réseau

Country Status (7)

Country Link
EP (1) EP0063974B1 (ja)
JP (1) JPS5812580A (ja)
AT (1) ATE19331T1 (ja)
AU (1) AU8230782A (ja)
DE (1) DE3270556D1 (ja)
ES (1) ES511311A0 (ja)
FR (1) FR2503954A1 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01160374A (ja) * 1987-12-17 1989-06-23 Toshiba Electric Equip Corp インバータ
JP2780177B2 (ja) * 1988-09-13 1998-07-30 東芝ライテック株式会社 放電灯点灯装置
JPH02192695A (ja) * 1988-11-30 1990-07-30 Toshiba Lighting & Technol Corp 放電灯点灯装置
EP0388492B1 (en) * 1989-03-22 1994-01-26 Toshiba Electric Equipment Corporation Inverter capable of controlling operating frequency
US5097181A (en) * 1989-09-29 1992-03-17 Toshiba Lighting & Technology Corporation Discharge lamp lighting device having level shift control function
EP0438181B1 (en) * 1990-01-19 1996-04-03 Canon Kabushiki Kaisha Electrostatic image developing toner and fixing method
CN111751719B (zh) * 2020-06-29 2021-11-16 深圳供电局有限公司 基于电网故障录波图判断变压器保护跳闸缘由方法及系统

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3284724A (en) * 1963-10-14 1966-11-08 Robertshaw Controls Co Oscillator with feedback bias amplitude stabilization
US3618130A (en) * 1969-07-28 1971-11-02 Tektronix Inc High efficiency regulated oscillator circuit having a substantially sinusoidal waveform
US3668505A (en) * 1970-07-20 1972-06-06 Tektronix Inc High voltage regulation circuit
GB1471150A (en) * 1973-07-30 1977-04-21 Thorn Electrical Ind Ltd Self-biased class c oscillators
US3889173A (en) * 1973-12-07 1975-06-10 Texas Instruments Inc Switching regulator power supply
DE2410915A1 (de) * 1974-03-07 1975-09-11 Endress Hauser Gmbh Co Gleichspannungswandler
US3973220A (en) * 1975-06-02 1976-08-03 Ni-Tec, Inc. Oscillator amplitude regulating system
JPS54731A (en) * 1977-06-03 1979-01-06 Inoue Japax Res Power supply for electric machine tool
EP0018186A1 (en) * 1979-04-12 1980-10-29 Gould Advance Limited Improved inverter circuit
DE3007566A1 (de) * 1980-02-28 1981-09-03 Siemens AG, 1000 Berlin und 8000 München Freischwingender sperrwandler

Also Published As

Publication number Publication date
JPS5812580A (ja) 1983-01-24
FR2503954A1 (fr) 1982-10-15
EP0063974A1 (fr) 1982-11-03
ES8304726A1 (es) 1983-03-01
ES511311A0 (es) 1983-03-01
ATE19331T1 (de) 1986-05-15
FR2503954B1 (ja) 1984-10-19
AU8230782A (en) 1982-10-14
DE3270556D1 (en) 1986-05-22

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